Home / 6,578.70-9,081.77-3,890.38

Finding the Fourth Proportional to 6,578.70, 9,081.77 and 3,890.38

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Solution

The fourth proportional to 6,578.70, 9,081.77 and 3,890.38 is: 5,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,578.70 : 9,081.77 = 3,890.38 : x
  2. Step 2: Convert to fraction form
    6,578.70/9,081.77 = 3,890.38/x
  3. Step 3: Cross multiply
    6,578.70x = 9,081.77 × 3,890.38
  4. Step 4: Simplify right side
    6,578.70x = 35,331,536.37
  5. Step 5: Solve for x
    x = 35,331,536.37/6,578.70
  6. Step 6: Final answer
    x = 5,370.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.